계산 툴
데이터시트
TPS54140
- 3.5- to 42-V Input Voltage Range
- 200-mΩ High-Side MOSFET
- High Efficiency at Light Loads with a
Pulse Skipping Eco-mode™ - 116-µA Operating Quiescent Current
- 1.3-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start and Sequencing
- UV and OV Power-Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- MSOP10 Package With PowerPAD
- Supported by WEBENCH® Software Tool
(www.TI.com/WEBENCH)
The TPS54140 device is a 42-V, 1.5-A, step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, regulated output-supply current to 116 µA. Using the enable pin, the shutdown supply current is reduced to 1.3 µA.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output-voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 94% to 107% of the nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the device during an overload condition.
The TPS54140 device is available in a 10-pin thermally enhanced MSOP PowerPAD package.
기술 문서
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모두 보기7 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS54140 1.5-A, 42-V Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. C) | PDF | HTML | 2014/11/14 |
| Application note | Understanding Eco-mode(TM) Operation | 2016/12/05 | ||
| Application note | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015/03/05 | ||
| Application note | Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A | 2013/04/17 | ||
| Application note | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012/10/26 | ||
| Application note | Level Shifting Control for an Inverting Buck-boost | 2012/10/10 | ||
| User guide | TPS54140EVM-429 1.5 A, SWIFT Regulator Evaluation Module | 2008/03/19 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
TPS54140EVM-429 — TPS54140 42V 입력, 3.3V 출력, 1.5A 평가 모듈
The TPS54140EVM-429 evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54140 regulator. The TPS54140 dc/dc converter is designed to provide up to a 1.5 A output from an input voltage source of 3.5 V to 42 V. Rated (...)
사용 설명서: PDF
시뮬레이션 모델
TPS54140 TINA-TI Steady State Reference Design
SLIM280.TSC (380 KB) - TINA-TI Reference Design
계산 툴
SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator
The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)
지원되는 제품 및 하드웨어
제품
AC/DC & DC/DC converters (integrated FET)
계산 툴
SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download
The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.
This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)
지원되는 제품 및 하드웨어
제품
AC/DC & DC/DC converters (integrated FET)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HVSSOP (DGQ) | 10 | 옵션 보기 |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치